Nvm Options For Uploading And Downloading; Updating To Ram - Control Techniques Epsilon EP-P Reference Manual

2.7.5

NVM Options for Uploading and Downloading

Uploading
When uploading from a drive, the values that were last downloaded are uploaded and put into a PowerTools Pro configuration
file. At the completion of the upload, the user will be asked if they wish to upload the NVM values. This dialog box is shown
below.
By selecting Yes, the values of all parameters stored in NVM will be uploaded and entered into the PowerTools Pro file values.
If No is selected, the values entered into the PowerTools Pro file will remain the same as those that were last downloaded to
the drive.
Downloading
When downloading to the drive the user will be required to select how to handle the NVM parameters upon downloading. The
dialog box asking the user to select one of three options for the download is shown below.
A description of each of the options is as follows:
Overwrite – This option will overwrite all the parameters stored in NVM with the current values in the user configuration
(PowerTools Pro file). The values that are in NVM prior to the download will be lost.
Update – This option will upload the current NVM parameter values from the drive and enter them into the user configuration
(PowerTools Pro file). Once the NVM values have been stored in the file, the file is fully downloaded.
Keep – This option will download the entire user configuration, but then NVM parameters will be restored to the value prior to
download. This is similar to the Update option, but the Keep option does not upload the NVM values into the user
configuration (PowerTools Pro file).
The following table shows an example of how these options work:
PT Pro file value for Index.0.Vel
NVM value for Index.0.Vel
2.7.6

Updating to RAM

The Update to RAM button can be used to send changes to the drive without performing a complete download.
The Update to RAM button is found in the PowerTools Pro toolbar. This operation will send only those changes
that have been made since the last Update to RAM or a Device>Download to the drive was done. The changes
will take effect immediately upon clicking on the button.
The parameters will be sent to the drive without stopping motion or disabling the drives. Because of this, it is
important to use caution when changing motion parameters while the motor is in motion.
CAUTION
The Update to RAM button saves the parameters only to RAM and not to Non-Volatile Memory (NVM). Therefore, if the
system power is removed, any changes made using the Update to RAM button will be lost. In order to save changes to NVM,
a full-download must be performed.
The flowchart below describes a typical process using the Update to RAM to make changes, and then downloading when
complete to save changes to NVM.
Epsilon EP-P Drive Reference Manual
Revision A4
Before Download
Overwrite
Option
150 150
500 150
www.controltechniques.com
After Download
Update Keep
Option Option
500 150
500 500
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